PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-13:43:00
G02     201.6          20.1                7.9 +/-    3.39      17.2 +/-    3.39  0.110 / 0.140
G06     167.8          57.0                8.6 +/-    0.75      10.0 +/-    0.75  0.070 / 0.110
G13     224.2          11.8                6.1 +/-    2.79      16.3 +/-    2.79  0.040 / 0.100
G17     19.8           60.6                5.8 +/-    0.41       6.6 +/-    0.41  0.050 / 0.080
G19     335.7          70.7                5.4 +/-    0.40       5.7 +/-    0.40  0.050 / 0.050
G24     308.7          30.3                5.5 +/-    1.46       9.6 +/-    1.46  0.040 / 0.050
G28     85.7           43.9                6.4 +/-    1.22       8.8 +/-    1.22  0.100 / 0.530
G30     157.5          12.8                7.7 +/-    2.66      20.1 +/-    2.66  0.110 / 0.470